diff --git a/src/librustc/ty/query/plumbing.rs b/src/librustc/ty/query/plumbing.rs index a73b92ed713ec..3f90f072ddbdf 100644 --- a/src/librustc/ty/query/plumbing.rs +++ b/src/librustc/ty/query/plumbing.rs @@ -136,11 +136,14 @@ impl<'a, 'tcx, Q: QueryDescription<'tcx>> JobOwner<'a, 'tcx, Q> { Entry::Vacant(entry) => { // No job entry for this query. Return a new one to be started later return tls::with_related_context(tcx, |icx| { + // Create the `parent` variable before `info`. This allows LLVM + // to elide the move of `info` + let parent = icx.query.clone(); let info = QueryInfo { span, query: Q::query(key.clone()), }; - let job = Lrc::new(QueryJob::new(info, icx.query.clone())); + let job = Lrc::new(QueryJob::new(info, parent)); let owner = JobOwner { cache, job: job.clone(),